Catalogue

Composite Sleepers

Composite sleepers are fibre reinforced polymer (FRP) sleepers for a composite retaining wall or raised garden bed. They are lightweight, will not rot or warp, and are resistant to termites and weathering, which makes them easier to install than heavy concrete sleepers. Pick your length and colour below and check stock availability before you purchase.

Shop by type

Shop Composite Sleepers by type

All compositeLightweight FRP sleepers, posts and plinths.Shop All composite → Composite postsMatching composite posts for composite sleeper walls.Shop Composite posts → Composite plinthsLightweight plinths to close the gap under a fence.Shop Composite plinths →

1 product

Material not listed?

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Send a drawing or product schedule with sizes and quantities so the team can review your list.

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Prices include GST. Freight calculated separately.

Not sure which Composite Sleepers you need?

Text us your wall height and length, or a photo of your site, and we'll point you to the right product.

Replies 7am to 6pm

Text 0420 120 105 Call 1300 211 390

Lightweight

Easier to carry to the back of a site than concrete.

Low maintenance

No rot, no termites and no oiling, unlike hardwood and other timber sleepers.

Modern and stylish

Colours and textures to suit modern landscaping.

Engineering available

Supplier engineering for your composite retaining wall project.

Choose the right product

Composite, concrete or timber sleepers?

Each of the traditional materials has its place. Composite is ideal where weight and access are the problem. Remember that strength and wall height limits differ for every composite material, so check the design before you set your heart on one.

Retaining wall calculator
ConsiderComposite sleepersConcrete sleepersTimber sleepers
WeightLightweightHeavyModerate
Rot and termitesNot affectedNot affectedAffected over time
MaintenanceA washA washTreating and replacing
Wall heightTo the supplier's engineeringThe widest rangeLow walls

Note: comparable does not mean interchangeable. A composite sleeper has its own span and height limits. It is important to ensure the posts, sleepers and footings all come from one design.

Complete the job

Everything else the job needs, in the same order.

Composite PostsMatching composite posts for composite sleeper walls.Shop Composite Posts → Composite PlinthsLightweight plinths to close the gap under a fence.Shop Composite Plinths → Concrete SleepersPlain and patterned sleepers in 75–80mm and 100mm thicknesses.Shop Concrete Sleepers → Retaining Wall DrainageAg pipe, geofabric and drainage materials for behind the wall.Shop Retaining Wall Drainage →

Order planning

Delivery, lead times and logistics

Delivery

Composite sleepers are long loads delivered by truck. Tell us about narrow access, steep driveways or overhead obstructions. Unloading equipment is not automatically included.

Lead time

Usually delivered in 2–10 business days. We confirm the date with you before you pay.

Freight is priced to your delivery suburb for most metro areas, or will be confirmed with you before payment.

Delivery and pick up options are shown on each product. Wait for our confirmation before arranging transport or attending for pick up.

Questions

Before you order.

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What are composite sleepers made of?

Ours are fibre reinforced polymer: glass fibre set in resin. They are not made from recycled materials, and we do not make eco friendly claims for them. What the product does offer is durability at a low weight.

How high can a composite retaining wall go?

The limit comes from the supplier's engineering for each product. In Queensland, walls over 1m, or walls carrying a load such as a fence or driveway, generally need an engineer's design.

How do I install composite sleepers?

Step by step: set the posts in concrete in the ground, let it cure, then slide the sleepers in from the top. There are no bolts. A sleeper can be cut to length at the end of a run. Wear eye and dust protection when you cut. The light weight is a real saving in time.

Are they good for a raised garden bed?

Yes. They suit a raised garden bed or a low wall in a backyard, and they create a clean edge. If you love the look of timber but not the upkeep, they are worth a look. Matching plinths are optional.

How long do composite sleepers last?

They are durable: no rot, no termites. A hard impact can still mark the surface. For longevity, we go by the supplier's warranty and will not promise a number of years into the future.

Do you deliver to the Gold Coast?

Yes. We deliver to the Gold Coast, Brisbane and the Sunshine Coast. If you are interested, send an enquiry with a photo of the site and a list of items. We review it and come back with a price. Prices shown are everyday prices, not a sale.

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Composite Sleepers delivered near you

Guides

Know before you build